Quarry car



.1.y G. WILSON March 10, 936.

QUARRY GAR Fild Maron 21, 1955 5 Sheets-Sheet 1 -Manch 10, 1936.

J. G. WILSON 2,33,798

* QUARRY CAR Filed Maron 2 1, 1955 s sheets-shee 2 l arch l0, 1936. J.G. WILSON @3397 QUARRY CAR Filed March 2l, 1953 3 Sheets-Sheet 3Patented Mar. 10, 1936 UNITED STATES PATENT OFFICEY 7 Claims.

This invention relates to industrial cars, and more particularly to abody and truck frame construction particularly adapted for use inVconjunction with quarry cars.

Quarry cars are subj ected to unusual rigors and as a result areordinarily relatively short-lived. `The, cars are subjected toheavyimpacts incoupling and uncoupling the same from the tractor and due totheheavy loads contained in the bodies have a tendency to rack so thatthey break their supports in a relatively short time. They are,furthermore, difficult to manipulate in dumping, it being understoodthat quarry cars, to be successful, must be of` the dumping type; Thecars are ordinarily supported from pivots at their ends which, due tothe heavy loads imposed thereon, and unwieldy nature of their contents,are usually disposed well above the bottoms of the car. Lockingmechanisms associated with the pivots must, therefore, be duplicated atopposite ends of the car, necessitating in dumping that the workmen movefrom one to the other end of the car and thus consume considerable time.This has lead to fairly common use of what is ordinarily lmown as achain fastener consisting of a pair of chains connected to the body atopposite sides thereof and to the frame so that movement of the car ineither direction is ordinarily restrained. Such devices are, however,extremely .unsatisfactory in that any chain connection must, ofnecessity, be left sufficiently loose to permit its disengagement, thuspermitting play. The load, usually of at least several tons in weight,is often unbalanced with the result that the car tends to lean to oneside, the chain on the' other side tighteningin the process. If, due toinertia resulting from movement of the car about a curve, the load tendsto move toward the side at which the chain is tight, the body maypartake of considerable movement and the inertia thus set up tends toupset the car and cause it to leave the rails, often carrying with it asucceeding car or cars and causing considerable delay in the movementsof the train.l

An important object of the present invention is the provision of acentrally-disposed locking mechanism for. such cars, of such characterthat the car body is held substantially rigid with relation to the cartruck so that the inertia forces hereinbefore mentioned may not be setup and cause tipping of the car. Y Y

A further object of'the invention is to provide in combination withsucha locking mechanism a means rigidifying the car body to the truck framein a direction longitudinal to the car when in its normal orload-carrying position so that during coupling and uncoupling movementsthere is no rocking of the car supports upon which the end pivots aremounted.

Such cars are generally of the self-righting type and a further objectof the invention is the provision of a restraining device in combinationwith a rocker support for the car, which restraining device is of suchcharacter that the car is prevented from moving too far in its dumpingaction. f

These and other objects I attain by the construction shown in theaccompanying drawings wherein, for the purpose of illustration, I haveshown a preferred embodiment of my invention and wherein:

Fig. 1 is a side elevation of a quarry car constructed in accordancewith my invention;

Fig. 2 is an end elevation thereof;

Fig. 3 is an enlarged horizontal transverse sectional view; and

Fig, 4 is an enlarged transverse sectional view.

Referring now more particularly to the drawings, the numeral I0generally designates a wheelsupported truck frame, at present shown asing. Y

cluding longitudinal members I I connected at their ends'by standardsI2, the upper ends of which support rocker platforms I3. Theselongitudinal members are further connected at the approximate centersthereof by a pair of spaced, parallel, transversely-extending supportscomprising angle plates having the vertical angles III thereof opposedand the horizontal flanges I5 thereof seated upon and welded orotherwise secured to the upper flanges I6 of the longitudinal members.

The car is, in its general construction, of the usual type, includingparallel end walls I'I and downwardly converging side walls I8 mergingvin a rounded bottom I9. The end walls I1 have lo each secured theretoat points spaced above the bottom thereof rockers 20, the faces of whichare provided with cogs 2| to engage in openings 22 formed in the rockerbeds. The rockers 20 are so disposed and designed that the car when 45empty has its center of gravity at a point lying between the rocker andthe bottom I9 so that the car will, when emptied, tend to returnautomatically to its normal or load-receiving position. When loaded,however, the center of gravity is elevated due to the upwardlyincreasing cross sectional area Vof the car so that when loaded it has atendency to tilt to one side or the other when released, as hereinafterdescribed.

In order that the inertia of the car when 55 dumping may not carry thecar from the rocker platform, the ends of the rockers are provided withflanges 23 while the ends of the rocker platform are provided withupstanding flanges 24 having inturned upper ends 25. The terminals ofthe inturned upper ends 25 are so spaced from the rocker center that theflanges 23 just clear the same as the car reaches the limit of itsrocking. The terminal of the rocker proper will then act as a pivotupo'n which the car and the rocker will elevate, this elevation bringingthe ange 23 and the rocker under the inturned terminal 25 and positivelylimiting this movement. The body is preferably, although notnecessarily, of' welded construction throughout.

To the botto'm I9 I secure a member 26 having a centrally-arrangeddepending lug 2. This lug, during the time the car is in its normalposition, or disposed at a slight angle to its normal posi.- tion,extends between the vertical flanges I4 of the transverse braces and theside faces of the member and the confronting faces o'f the flanges I4have cam lugs 28 and 29 formed thereon, the peaks of these lugs beingflat While the side faces thereof' are inclined. The peaks of the lugs28 and 29 when the car body is in normal position, are opposed to oneanother and are but very slightly spaced, with the result that when thecar body is loaded and a train or tractor is coupled thereto the impactresulting from coupling is transmitted directly from the truck frame I0to the body through the member 26. A solid connection is thus provided,preventing any undue strainbeing placed upon the standards I2.

As a means for maintaining the car in its normal position, I provide apair of dogs 30 mounted upon pivots 3I extending between the flanges I4o'f the central transverse braces. These dogs each have a tail 32overlying the inner end of a lever 33 which are pivoted. upo'n theexteriors of the longitudinal members I I as at 34 and extend throughopenings 35vv formed therein. The inner end of each lever 33 has adownwardly-extending shoulder 36 which engages against the inner face ofthe corresponding side member to limit the downward movement of' suchinner end. Each dog 30 has upon the outer end thereof adownwardly-extending arm 3T, these arms being connected by springs 38.The inner ends of the dogs are thus constantly urged upwardly to engageagainst opposite sides of the lug 21. It will be obvious that bydepressing the outer end of a lever 33 which is in the form of a treadlethe outer end of the corresponding dog will be elevated, thus depressingthe inner end thereof and freeing the lug for movement in the directionof the depressed lever 33. Should a loaded car thus released be slightlyunbalanced so that it tends to remain in engagement with the other ofthe dogs it may be unseated from this dog by a slight push. The treadleof lever 33 may be immediately released after movement of the car isstarted so that the lever assumes its normal position. When dumping ofthe car has been completed, the car will return by gravity to its normalposition and in so doing the lug 21 will engage against the dog 30 anddepress the same against the action of spring 38 to permit the lug toreach its normal position, after which the spring will act to return thedog tov its normal position and secure the car with the lug centrallydisposed and with its cam lugs 29 in opposition to the lugs 28 of thetransverse braces.

While I have above described the dumping bo'dy and itssupporting frameasa portion of.: a railway car, it will, of course, be understood thatthe use of the structure herein described is not necessarily limited tothe specific arrangement illustrated and that the frame II might bemounted upon any vehicle.

It will also be obvious that the construction illustrated is capable ofa certain range of ,change and modification, I accordingly do not wishto be understood as limiting myself thereto except as hereinafterclaimed.

I claim:

1. In a quarry car, a wheel-supported truck, a body supported at itsends from the truck for transverse oscillation and normally assuming avertical load-receiving position by gravity, the truck including spacedtransversely-extending elements, a member on the body interposingbetween said transverse elements when in load-receiving position,co-acting cams carried by said transverse elements and the end faces ofsaid member, said camshaving peaks, the peaks of the cams of thetransverse elements and the member being in opposition when the body isin loadreceiving position, andv locking means co-acting.

with said. member for maintaining the body in load-receiving position.

2. In a quarry car, a wheel-supported truck, a body supported at itsends from the truck for transverse oscillation and` normally assuming avertical load-receiving position by gravity, the truck including spacedtransversely-extending elements, a member on the body interposingbetween said transverse elements when in loadreceiving position,co-acting cams carried by said transverse elements and the end faces ofsaid member, said cams having peaks, the peaks of the cams o'f thetransverse elements and the member being in opposition when the body isin load-receiving position, and a locking mechanism disposed ateach sideof the truck and having engagement with the corresponding side of themember, said locking mechanisms maintaining the member in itsload-receiving position.

3. In a quarry car, a wheel-supported truck, abody supported at its endsfrom the truck for transverseoscillation and normally assuming avertical load-receiving position by gravity, the truck including spacedtransversely-extending elements, a member on the body interposingbetween saidtransverse elements when in load-receiving position,co-acting cams carried by said transverse elements and the end faces ofsaid member, saidcams having peaks, the peaks of the cams of theltransverse elements and the member being in opposition when the body isin loadreceiving position, and a looking mechanism disposed at each sideof the truck and having engagement with the corresponding side of themember, said locking mechanisms maintaining the member in itsload-receiving position, and each when released permitting movement ofthe upper end' of the body toward the opposite side of the truck.

4. In a quarry car, a wheel-supported truck, a body supported; at itsends from the truck for transverse oscillation and normally assuming avertical load-receiving positionl by gravity, the truck including spacedtransversely extending elements, a member on the body interposingbetweenv saidI transverseelements when in load-receiving position andhaving portions which when in load-receiving position closelyapproximate opposing` portions carried by said transverselyextendingelements, a pair of dogs carried by the elements and. adapted forco-action with opposite sides of said member to hold the body in itsloadreceiving position, each dog having a tail, and a single springconnecting the tails of said dogs.

5. In a quarry car, a Wheel-supported truck, a body supported at itsends from the truck for transverse oscillation and normally assuming avertical load-receiving position by gravity, the truck including spacedtransversely-extending elements, a member on the body interposingbetween said transverse elements when in loadreceiving position andhaving portions which when in load-receiving position closelyapproximate opposing portions carried by said transversely-extendingelements, a pair of dogs carried by the elements and adapted forco-action with opposite sides of said member to hold the body in itsload-receiving position, and a treadle for releasing each dog, thetreadle associated with each dog being disposed at the same side of thetruck thereas and intermediate the ends of the body.

6. In a quarry car, a wheel-supportedV truck, a body supported at itsends from the truck for transverse oscillation and normally assuming avertical load-receiving position by gravity, the truck Vincluding spacedtransversely-extending elements, a member on the body interposingbetween said transverse elements when in load-receiving position andhaving portions which when in load-receiving position closelyapproximate opposing portions carried by said transverselyextendingelements, a pair of dogs carried by the elements and adapted forco-aetion with opposite sides of said member to hold the body in itsload-receiving position, pivotal supports for said dogs carried by saidtransverse elements, each dog having a tail, and a single springconnecting the tails of said dogs.

7. In a quarry car, a wheel-supported truck, a body supported at itsends from the truck for transverse oscillation and normally assuming avertical load-receiving position by gravity, the truck including spacedtransversely-extending elements, a member on the body interposingbetween said transverse elements when in loadreceiving position, a pairof dogs carried by the frame and adapted for co-action with oppositesides of said member to hold the body in its loadreceiving position,pivotal supports for said dogs carried by said transverse elements, anda treadle for releasing each dog, the treadle associated With each dogbeing disposed at the same side of the truck thereas and intermediatethe ends of the body.

JOHN G. WILSON.

